Integer overflow in Libarchive
CVE-2016-4300
Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.049 (92.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.049 · newest: 0.049 · change: 0.000
Affected products
- Libarchive
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Hpc Node — versions 7.0
- Red Hat Enterprise Linux Hpc Node Eus — versions 7.2
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.2
- Red Hat Enterprise Linux Server Eus — versions 7.2
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
References
- rhn.redhat.com/errata/RHSA-2016-1844.html (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- blog.talosintel.com/2016/06/the-poisoned-archives.html (Exploit, Third Party Advisory)
- www.securityfocus.com/bid/91326 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/libarchive/libarchive/issues/718 (Patch, Third Party Advisory, Issue Tracking)
- www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- www.talosintel.com/reports/TALOS-2016-0152/ (Exploit, Third Party Advisory)
- security.gentoo.org/glsa/201701-03 (vendor-advisory)
- github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573 (Patch, Third Party Advisory, Issue Tracking)
- security-center.intel.com/advisory.aspx
Frequently asked questions
- What is CVE-2016-4300?
- CVE-2016-4300 is a high-severity vulnerability in Libarchive, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2016-09-21.
- How severe is CVE-2016-4300?
- High severity. CVSS v3 base score is 7.8 out of 10.